Fuse for projectiles.



PATENTBD FEB. 6, 1906.

H. C. SEDDON. FUSE FOR PROJEGTILES.

APPLICATION FILED JULY 7.1905.

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K. '1. 4? ME) UNITE STATES PATENT oFFIoE.

FUSE FOR PROJECTILES.

Specification of Letters Patent.

Patented Feb. 6, 1906.

Application filed July 7,1905. Serial No. 268,624:-

To all whom it may concern:

Be it known that I, HENRY COOPER SED- DON, late Royal Engineers, asubject of the King of Great Britain, residing at 25 Comeragh road, WestKensington, in the county of MiddleseX, England, have invented certainnew and useful Improvements in Fuses for Projectiles, of which thefollowing is a specification.

According to this invention the firing-pellet is securely held inposition until after the projectile has left the gun, when it movesrearward and is then free to move forward and fire the charge uponimpact.

Figure 1 is a longitudinal section of a fuse constructed according tothis invention. Fig. 2 is a detached view of the spring I). Fig. 3 is asimilar view to Fig. 1, showing a modification.

A is the body of the fuse, and A is a perforated base-plug.

D is a pressure-plate abutting against the rear end of the pellet a, andF is a cup abutting against the plate D and preventing the rearwardmovement of the pellet until the cup is deformed by the pressure of thegases in the gun. This method of normally preventing the rearward motionof the pellet forms the subject of another application of even dateherewith, Serial No. 268,623, and forms no part of the present inventionand may be replaced by any other convenient means for effecting the sameobject. In Fig. 1 the pellet a is held in position by a spring 1),(shown in plan at Fig. 2,) which presses the pellet toward the base ofthe fuse and is preferably secured to it. The extremities o the springengage with a groove or indent c in the inner wall of the fuse untilafter the pro'ectile has left the gun, upon which the pellet is forcedback, and the spring is disengaged from the grooves or indents,(assuming the position shown in dotted lines,) the pellet being thenfree to move forward to fire the charge. For additional security thepellet may also be held in osition by means of a ball or balls (1,artially projecting from a hole or holes in tfie inner wall of the fuseand engaging with the pellet, as shown at Fig. 3, the ball or ballsbeing freed and preferably forced inward by springs 6 when the pelletmoves rearward. This method of holding the pellet by means of a ball orballs is not claimed per se, but only in combination under the presentapplication.

What I claim is 1. The combination of a fuse-body, a firing-pellet,means for normally preventing the pellet from moving rearward, and aspring engaging with the pellet and with the body and preventing thepellet from moving forward but not impeding its rearward movement.

2. The combination of a fuse-body, a firing-pellet, means for normallypreventing the pellet from moving rearward, and a spring carried by thepellet and engaging with the body and preventing the pellet from movingforward but not impeding-its rearward movement.

3. The combination of a fuse-body, a firing-pellet, means for normallypreventing the pellet from moving rearward, a spring engaging with thepellet and with the body and preventing the pellet from moving forwardbut not impeding its rearward movement,

and a ball partially projecting from a hole in the body and engagingwith the pellet.

4. The combination of a fuse-body, a firing-pellet, means for normallypreventing the pellet from moving rearward and a spring engaging withthe pellet and with the body, the end of which when released tends tomove inward but normally prevents the pellet from moving forward.

5. The combination of a fuse-body, a firing-pellet, means for normallypreventing the pellet from moving rearward, a spring carried by thepellet and engaging with the body and preventing the pellet from movingforward ut not impeding its rearward movement, and a ball partiallyprojecting from a hole in the body and engaging with the pellet.

6. The combination of a fuse-body, a firing-pellet, means for normallypreventing the pellet from moving rearward, a spring engaging with thepellet and with the body and preventing the pellet from moving forwardbut not im eding its rearward movement, a

ball partia 1y projecting from a hole in the body and engagin with theellet, and a spring tending to orce the bal radially inward out of thehole.

7. The combination of a fuse-body, a fir- IOO ing-pellet, means fornormally preventing the spring tending to force the ball radiallyinpellet frommoving rearward, a spring carried ward out of the hole. bythe pellet and engaging with the body and HENRY COOPER SEDDON preventingthe pellet from moving forward a 5 but not impeding itsrearwardmovement, a Witnesses:

ball partially projecting from a hole in the H. D. JAMESON, body andengaging with the pellet, and a Y. L. RAND.

